Home / 12,877.92-19,334.16-7,622.64

Finding the Fourth Proportional to 12,877.92, 19,334.16 and 7,622.64

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Solution

The fourth proportional to 12,877.92, 19,334.16 and 7,622.64 is: 11,444.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.92 : 19,334.16 = 7,622.64 : x
  2. Step 2: Convert to fraction form
    12,877.92/19,334.16 = 7,622.64/x
  3. Step 3: Cross multiply
    12,877.92x = 19,334.16 × 7,622.64
  4. Step 4: Simplify right side
    12,877.92x = 147,377,341.38
  5. Step 5: Solve for x
    x = 147,377,341.38/12,877.92
  6. Step 6: Final answer
    x = 11,444.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.